Yarn install error for self signed cert

[jonbettinger]

For anyone behind a corporate ssl proxy such as zscaler, you can disable yarn strict ssl in the docker container. Add:
RUN yarn config set "strict-ssl" false
to docker/Dockerfile just prior to the yarn install command.

[paytonrules]

I've scrapped the Docker config in favor of Gitpod. If this is still an issue on standard Windows setups I'm happy to add it the readme.